

why must he be experiencing time?
Because he performed the act of creating us. There is no action if there is no time.
Any argument you apply to god can be applied to the universe itself. You have arguments from ignorance and nothing else, which is not sufficient to convince anyone reasonable of god’s existence.

Hey so, maybe it doesn’t exist.
Given all available information, that is much more likely.
You keep using “we can’t understand” to reinforce your assumptions. But “we can’t understand” means the one thing that you picked is almost certainly not true, because there are endless other possibilities and we have no way to test any of them.
Omnipotence would mean no suffering, if he loves us. You lack imagination if you can’t see that. There is no inherent need for our universe to be the way it is.